Window latch



A. F'. LICKTEIG WINDOW LATCH April 23, 1957 2 Sheets-Sheet' l Filed June 10, 1954 April 23, 1957 A. F. LICKTEIG 2,789,851

i WINDOW LATCH Y Filed June 10, 1954 l 2 Sheets-Sheet 2 /0 4 ATTOQN EY United Seres y .1511.19.11 F- LiCkteig,..GrandRapids, Mch., .assignonvby Applicariqnsun 10, ,1954,sggia1 N9. 455,161 1.1' r9.1- :essere or windowsashislmonted at aripening-.ih "window frame, at oradjacentits. upper edgesp forpivotal moverient about@ horizontal axis, being s. .H bJJect and purpose of the 'pgesent `lriyerrtlon prpvidea farticularly novel, srnpepslturdygand,,economically constructed'locking latch for securely, yet` Akeleasably 'holdingan awning .Window ,s ash or the like in closed position againstl 1accidental or 'other in adyertent opening; andw-hich canbe opened by releasing' thelateh to disconnect it from a keeper permanently secured at the lower portion .and at the inner side of the awning win-dow sash. The locking latch also is of particular usefulness in engaging with the keeper on the window sash, even though the window is not completely or almost completely closed, but with the lower edge portions of the window sash outwardly an appreciable distance from the window sill against which it is to be drawn in closed position. The latch upon manual operation will engage with the keeper and draw the sash to closed position.

An understanding of the invention may be 'had from the following description taken in connection with the accompanying drawings, in which,

Fig. 1 is a perspective view of the latch and keeper, the latch being shown secured at the upper side of the sill of a window frame, .and the keeper at the inner side and near the lower edge of the awning window sash.

Fig. 2 is a horizontal section through the latch housing between its upper and lower sides, and with the latch shown in plan in operative position engaged with the keeper, and

Fig. 3 is a like view to that shown in Fig. 2, the latch being .at its released position in full lines, and indicating the keeper engagement with the latch on closing in dash lines.

Like reference characters refer to like parts in the diiferent gures of the drawings.

At the inner side .and near the lower edge of the lower horizontal rail 1 of an awning window sash, the keeper for the locking latch which I have produced is securely fixed. Such rail when the window sash is in closed position comes against a shoulder at the outer edge portions of the horizontal sill 2 of the window frame with which the sash is associated, the locking latch of my invention being secured at the upper side of the sill.

Dhe keeper comprises a vertical plate 3 secured to the rail 1, preferably by screws. From the upper edge and between the ends of the plate 3 an integral section 4 is bent and extends inwardly in .a generally horizontal direction for a distance and is then bent downwardly into the immediateY keeper engaging lip 5 which, in horizontal cross section, is preferably in the arc of a circle.

The latch mechanism used with the keeper includes a 'housing of at metal having a lower horizontal plate 6 .from il?I Jlllesite endsy .of which short .vertical ilangesj are. .tumedupward1y- Ehe; housing .is completed .by Vanhpper :horizontal plate parallelgtoand spaced. ,from the 'lower plate. 6 arid havingat inner'. .and outer edges clownturnedY shortan'ges .At-,the `inner.side.of. the latchhoufsing, the. ilanges9 areuof short length, being. removed atan`intern`1ediate portion inthe. lengthofthe'plate 8, so vas .to leave'a Slot..thrfeugh .whichzjthe .operating handle for. th'e latch, hereaterescribed, Ipasses," .Si1r 1ila"rly,` .the intermediate .P Qrtzioli .of thellpp'er .llangesare removedzleaving ar'slot for the .passage of the elementoithel latch which enlgageswithtlie keeper. 'Ilhelplates` are `of1 'generallyrectangular formi exceptdnecornen portion isI cut away s shown.A p

' Thetlatehhandle 10. has integrally connectedghereto, .ataitsinnenend portion, ian arm 11 .which wlintheglatch is..closedv as. inFigs.. 1 and 2,. has/itslngitdinal center line pass.i1g. slightly over a' line'. parall'el ito. .the inner' side f.,.th`erlatch housing. The handl`e`10 extends inwardly ltljtdistanceand V is .then extended laterallyadshown. rltn'smadeof .atmeta'l'and olset as shownfforthe pur- .posepf renersibility vofthe latch structure.l It'iszpivotally mouille'd-,liusing .azhllow bushingflz, .the endsf'of` which are enlarged outwardly so as to securelyconnect the -bushilg .passesLthrouglieithe'handle str'ucture at V'the juncture of the'handle 10 withtle "arniY llinte'grallherewith. Near the free end of the .arm 11 a short pin 13 is secured extending upwardly therefrom and having its centerand the center of the pivot bushing 12 in a line over center a short distance from a line parallel to the length of arm 11.

The latch is completed by an intermediate keeper engaging member 14 which, together with a keeper engaging linger 15 integral therewith is yalso made from a plate of metal likewise oiset for reversibility lying over the arm 11. The length of the member 14, when the latch is in closed position (Fig. 2) is substantially at right angles to the arm 11. A slot 16 closed at both ends is cut in the part 14 parallel to the length thereof. Such keeper engaging member is pivotally mounted in the same manner .as the handle by means of a hollow bushing 17 which passes through the end of the part 14 of such keeper engaging member, adjacent its inner end. The pin 13 is located in the slot 16. Tlhe latch may be advantageously secured at the upper side of the sill 2 by means of screws 18 passing downwardly through the hollow pivot bushings 12 and 17.

When the latch is in closed position, as in Fig. 2, by grasping the handle 10 and swinging it about its pivot bushing 12 inwardly in a counter-clockwise direction, the pin 13 is swung in the arc of a circle in a similar direction, bearing against a side of the slot 16, and causing the keeper engaging member to turn in a clockwise direction thereby moving the finger 15 out of engagement with the part 5 of the keeper and forcing the sash outwardly to break paint or ice seals to the position shown in Fig. 3. slot l16 riding against the inner edge thereof. When thus operated the window sash is freed from the latch.

In closing the window and locking it in closed position,

after the sashY has been moved sufhciently close to the sill 2 the handle 10 is operated in the opposite direction, that is, in a clockwisedirection, whereupon pin 13 engages against the opposite or outer edge of the slot 16 swinging the keeper engaging'member and linger 15 to engage with, the keeper part 5, riding thereagainst and pulling the keeper and attached sash inwardly to closed position. Also the latch will be automatically operated to closed position on closing the window uponplate 3 The fpin, 13 moves lengthwise of the striking against the nger 15, as shown in dash lines in Fig. 3, the momentum of the sash supplying force to turn the nger 15 counter-clockwise about the pivotal axis of the bushing 17 so that the latch will automatically be moved tothe closed position as in Fig. 2. If the latch parts with the window open should -be in the closed position, as in Fig. 2, and, the keeper part 5 comes against the outer edge of the finger 15 it is merely necessary to swing the lever counter-:clockwise until the nger 15 disengages from the keeper and then immediately swing it back in the opposite direction to operatively engage with the keeper and hold the sash in closed position.`

The latch is of exceptionally durable and sturdy structure. VThe parts are few, easily fabricated and assembled so that economy of manufacture is obtained. -When the latch is in closed position, as in Fig. 2, an outward pull or force applied toy the window. sash `1 willrhaveV a tendency to swing the keeper engagingmember in a clockwise direction pushing against the pin 13 in the direction of the ,pivot bushing 12. However. the force exerted by the pin will be slightly past direct .alignment with the axis of the bushing 12, and there will be no component of the pin. force in a direction at rightY angles thereto to cause the handle 10 tok swing to yor towardopen position. This over dead center arrangement of thepin 13 with reference to the pivot bushing ,12 when the latch is in closed position provides apositivev lock against the sash being opened by an outward force applied directly to the sash.

The invention is defined in the appended claims and is to be considered comprehensive of all forms of struc ture coming within their scope.

" I claim:

In aV latch structure, a flat substantially rectangular housing comprising spaced. xedly connected plate-like housing members having registering notch-like recesses in the outer edges thereof providing a keeper and latch bolt receiving recess, said housing having slot-like openings in its inner and outer sides, a rst pivot disposed adjacent the inner side of said housing, a second pivot disposed adjacent the outer corner of the said housing in spaced relation to said keeper recess thereof,a handle disposed through said inner opening and pivotally mounted on said first pivot, and a keeper engaging member pivotally mounted on said second pivot, said lever and keeper engaging member having coengaging parts whereby said keeper engaging member is actuated by said lever, said keeper engaging member having a keeper engaging bolt element which projects from said outer casing opening when in projected position and is positioned within said keeper receiving recess when in locking position.

y References Cited in thetil x. of this patent UNITED STATES PATENTS 559,663 Bennett Mays, 1896 1,677,825. Hilfy July 17, 192s 2,151,219 Madsen Mar. 21, 1939 2,716,262 'Oswald 1- Aug. 3ro, 1955 FOREIGN PATENTS j l 136,195 Austria Jan. 10, 1934 

